Eyeglasses.



G. M. BLAGKFORD.

EYEGLASSES.

v APPLICATION FILED JAN. 24, 1912.

1,063,499. A Patented June 3,1913

v 4M 6M lens in the slightest degree.

UNITED STATES. PATENT orrIc-a CHARLES n -4 m www mnsw massi- EYEGLASSES,

To ll whom it may concern:

Be it known that I, CHARLES M. BLACK FORD, a citizen of the United States, residing at Trenton, in the county of Mercer and State of New Jersey, have invented new and useful Improvements in Eyeglasses, of which the following is a specificatiom This invention relates to eye glasses, spectacles and the like, and the object in view is to provide convenient and practical means for fastening each lens in the mounting in such a manner as to avoid weakening the The particular means for fastening the lens to the mounting not only retains the entire strength of the lens as well as the mounting but facilities the removal of the lensand the replacement of another lens. The expedient hereinafter particularly described also enables the most fragile or delicate lenses 'to be secured to the mounting as well as the heaviest lenses now on the market.

With the above and other objects in View, the invent-ion consists in the construction, combination and arrangement of parts, set forth in and falling within the scope of the appended claims.

In the drawing :Figure 1 is a view in elevation of a pair of eye glasses with the present invention applied thereto. Fig. 2 is an enlarged detail horizontal section, showing the means for fastening the lens in the mounting. Fig. 3- is a detail elevation of one member of the mounting. Fig. 4 is a detail erspective view of the complemental mem er of the mounting. Fig. 5 is a view of the invention applied'to spectacles. Fig. 6 is a top edge view of the same.

Referring to the drawings, 1 designates a pair of lenses connected by a bridge 2 of the ordinary form. Each of the mountings comprises a main member consisting of a shank 3 at one s1de of whlch there is located the usual curved brace 4 against which the contiguous ends of the lens bear for a support, while at the opposite end of the shank is a lug 5 provided with an opening to recelve the adjacent end of the bridge 2. Projecting Specification ofgLetters lPatent. Application filed January 24, 1812. Serial No. 678,087.

Patented June 3, 1313.

a circular end portion formed in its inner face with a semispherical socket '11. The shank of -one of said members is provided with a hole 12 and the shank of the .other member is provided with a threaded openmg 13 adapted- ,to receive a clamping screw 14 by which the two members of the mounting are drawn together for the purpose of clamping the adjacent lens 1 securely,between the same.

The lens 1 is'provided in opposite sides thereof with semi-spherical knobs 15 which are preferably formed of glass, although other material may be employed. These knobs may be secured'to the opposite faces of the lens by a quick-setting cement and they are, of course, secured to thelens at the proper point to fit into .the semi-spherical sockets 7 and 11 of the two members of the mounting in the manner clearly illus trated in Fig. 2, so that when the clamping screw 14.- is tightened, the complemental members of the mounting will be brought into firm binding contact with the knobs 15. The same idea as applied to spectacles is illustrated in Figs. 5 and 6, where in addition to the mountings at the inner edges of on opposite sides of the ear 16 may be used .in lieu of the shoulder 19 formed by the inner face of the lug 5 which receives the bridge 2. In either case, the spaced arms 9 of the complemental member of the mounting will slide and rest against the shoulder which consists of a pin 18, as shown in Fig. 3.

I claim 1. In a device of the class specified, the combination with a lens, of a semi-spherical knob permanently cemented'on the surface thereof and projecting therefrom, and a. de-

tachable mounting embodying a socketed portion and means for mechanically retaining the same in relation to said knob-and permittingseparation between the knob and mounting. 1

2. Ina device of'the class described, the combination with a lens, of semispherical knobs permanently cemented on opposite sides thereof and projecting therefrom, and

a mounting separable therefrom and embodying relatively movable clamping membersbers of the mounting in fixed relation to said knobs.

3. The combination with a lens having permanently attached knobs projecting from the opposite sides thereof, of a mounting for the purpose specified, embodying two lens-engaging members socketed to receive said knobs one of which members comprises a lens brace, a bridge seat, and a shank connecting the brace and seat, the 15 In testimony whereof I afiix my signature 20 in presence of two witnesses.

CHARLES M. BLACKFORD.

Witnesses: Y

GEORGE W. FoRMAN, WILLIAM E. BLACKMAN. 

